configs: Remove all setenv.bat files. Remove all references to setenv.sh and setenv.bat from all config README files.

configs/cloudctrl/README.txt

@@ -202,8 +202,8 @@ GNU Toolchain Options
     CONFIG_ARMV7M_TOOLCHAIN_RAISONANCE=y     : Raisonance RIDE7 under Windows
     CONFIG_ARMV7M_TOOLCHAIN_BUILDROOT=y      : NuttX buildroot under Linux or Cygwin (default)
 
-  If you change the default toolchain, then you may also have to modify the PATH in
-  the setenv.h file if your make cannot find the tools.
+  You may also have to modify the PATH environment variable if your make cannot
+  find the tools.
 
   NOTE: the CodeSourcery (for Windows), Atollic, devkitARM, and Raisonance toolchains are
   Windows native toolchains.  The CodeSourcery (for Linux) and NuttX buildroot
@@ -304,7 +304,7 @@ IDEs
 NuttX EABI buildroot Toolchain
 ==============================
 
-  A GNU GCC-based toolchain is assumed.  The files */setenv.sh should
+  A GNU GCC-based toolchain is assumed.  The PATH environment variable should
   be modified to point to the correct path to the Cortex-M3 GCC toolchain (if
   different from the default in your PATH variable).
 
@@ -340,14 +340,8 @@ NuttX EABI buildroot Toolchain
      -CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW=y
      +CONFIG_ARMV7M_TOOLCHAIN_BUILDROOT=y
 
-  9. Edit setenv.h, if necessary, so that the PATH variable includes
-     the path to the newly built binaries.
-
-     -export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
-     +#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
-
-     -#export TOOLCHAIN_BIN="${WD}/../buildroot/build_arm_nofpu/staging_dir/bin"
-     +export TOOLCHAIN_BIN="${WD}/../buildroot/build_arm_nofpu/staging_dir/bin"
+  9. Set the the PATH variable so tht it includes the path to the newly built
+     binaries.
 
   See the file configs/README.txt in the buildroot source tree.  That has more
   detailed PLUS some special instructions that you will need to follow if you are
@@ -408,8 +402,8 @@ NXFLAT Toolchain
 
   7. make
 
-  8. Edit setenv.h, if necessary, so that the PATH variable includes
-     the path to the newly builtNXFLAT binaries.
+  8. Make sure that the PATH variable includes the path to the newly built
+     NXFLAT binaries.
 
 LEDs
 ====
@@ -721,7 +715,6 @@ can be selected as follow:
     cd tools
     ./configure.sh shenzhou/<subdir>
     cd -
-    . ./setenv.sh
 
 Where <subdir> is one of the following:
 
@@ -802,7 +795,6 @@ Where <subdir> is one of the following:
     2. Make the build context (only)
 
        $ cd ..
-       $ . ./setenv.sh
        $ make context
        ...